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        1. — Must I feed the goldfish now?
          — No, you ______. But you must do it before supper.
          A.needn’tB.mustn’tC.don’tD.can’t
          A
          考查情態(tài)動(dòng)詞的用法。對于must引導(dǎo)的一般疑問句的否定回答,用needn’t 或don’t have to.故選A。
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